CN205595783U - Novel an over -current protection for constant voltage power supply device - Google Patents
Novel an over -current protection for constant voltage power supply device Download PDFInfo
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- CN205595783U CN205595783U CN201620398527.9U CN201620398527U CN205595783U CN 205595783 U CN205595783 U CN 205595783U CN 201620398527 U CN201620398527 U CN 201620398527U CN 205595783 U CN205595783 U CN 205595783U
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- power supply
- regulated power
- earth
- circuit
- slide
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Abstract
The utility model discloses a novel an over -current protection for constant voltage power supply device, the utility model discloses a constant voltage power supply, mistake current detection device, leakage detection device, singlechip unit, comparison circuit, buzzer siren, earth -leakage protector, reset switch, amplifier circuit, current controlling means, current controlling means includes slide -wire varistor ware, pneumatic element, top one side of slide -wire varistor ware is provided with first contact, the top opposite side of slide -wire varistor ware is provided with the second contact, the utility model discloses a comparison circuit can set for a plurality of circuit parameters, and earth -leakage protector carries out earth leakage protection to constant voltage power supply, and the police dispatch newspaper is sent out to the buzzer siren, and pneumatic element control slip piece distance changes the resistance of slide -wire varistor ware, adjusts constant voltage power supply's output current, and earth -leakage protector 1, the installation and debugging of being convenient for, are used at earth -leakage protector 0 to furthest's the loss of reduction constant voltage power supply in the use.
Description
Technical field
This utility model relates to electric safety device technical field, is specially a kind of novel for regulated power supply
Overcurrent protection.
Background technology
D.C. regulated power supply is usually used in supplying direct-flow electricity utilization apparatus and uses, but the D.C. regulated power supply of routine
All can produce leaky and overcurrent phenomenon when output, in the case of electric leakage or overcurrent, can drop
In the service life of low regulated power supply, potential safety hazard, regulated power supply of the prior art is caused typically to have
Carrying defencive function, particularly overcurrent protection function, overcurrent protection is the indispensable part of regulated power supply,
But being also only limitted to power-off protection, poor continuity, electric quantity loss is too high.
Utility model content
The purpose of this utility model is to provide a kind of novel overcurrent protection for regulated power supply,
With the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme: a kind of novel for voltage stabilizing electricity
The overcurrent protection in source, including regulated power supply, overcurrent detecting device, earth detector, list
Sheet machine unit, comparison circuit, buzzer siren, earth leakage protective device, reset switch, amplifying circuit, electricity
Flow control device, described current control device includes slide-wire rheostat, pneumatic element, described slip variable resistance
The side, top of device is provided with the first contact, and the top opposite side of described slide-wire rheostat is provided with second and touches
Head, the middle part of described slide-wire rheostat is provided with wiper, and one end of described pneumatic element is solid with wiper
Fixed connection.
Preferably, described regulated power supply passes through circuit with overcurrent detecting device, earth detector respectively
Connecting, the outfan of described overcurrent detecting device, the outfan of earth detector are all connected to monolithic
The input of machine unit.
Preferably, the input/output terminal of described single machine unit exchanges data, described monolithic with comparison circuit
The outfan of machine unit is connected respectively to buzzer siren, earth leakage protective device, reset switch, amplifying circuit.
Preferably, described reset switch is connected by circuit with earth leakage protective device, described earth leakage protective device
Outfan is connected to regulated power supply.
Preferably, the outfan of described amplifying circuit is connected to current control device, described slide-wire rheostat
On the first contact and the second contact be connected by circuit with regulated power supply respectively.
Compared with prior art, the beneficial effects of the utility model are: employing comparison circuit can be to multiple
Circuit parameter is set, and earth leakage protective device carries out earth leakage protective to regulated power supply, and buzzer siren sends
Alarm, pneumatic element controls wiper distance, changes the resistance of slide-wire rheostat, regulation regulated power supply
Output electric current, reduces regulated power supply loss in use, function admirable, use to greatest extent
Safe and reliable, it is simple to installation and debugging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of current control device.
In figure: 1, regulated power supply；2, overcurrent detecting device；3, earth detector；4, monolithic
Machine unit；5, comparison circuit；6, buzzer siren；7, earth leakage protective device；8, reset switch；9、
Amplifying circuit；10, current control device；11, slide-wire rheostat；12, pneumatic element；13, first
Contact；14, the second contact；15, wiper.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Referring to Fig. 1-2, this utility model provides a kind of technical scheme: include regulated power supply 1, overcurrent
Detection device 2, earth detector 3, single machine unit 4, comparison circuit 5, buzzer siren 6, leakage
Non-electricity protector 7, reset switch 8, amplifying circuit 9, current control device 10, described current control device
10 include that slide-wire rheostat 11, pneumatic element 12, the side, top of described slide-wire rheostat 11 are provided with
First contact 13, the top opposite side of described slide-wire rheostat 11 is provided with the second contact 14, described cunning
The middle part of line rheostat 11 is provided with wiper 15, and one end of described pneumatic element 12 is solid with wiper 15
Fixed connection, described regulated power supply 1 passes through circuit with overcurrent detecting device 2, earth detector 3 respectively
Connecting, the outfan of described overcurrent detecting device 2, the outfan of earth detector 3 are all connected to
The input of single machine unit 4, the input/output terminal of described single machine unit 4 exchanges with comparison circuit 5
Data, the outfan of described single machine unit 4 be connected respectively to buzzer siren 6, earth leakage protective device 7,
Reset switch 8, amplifying circuit 9, described reset switch 8 is connected by circuit with earth leakage protective device 7, institute
The outfan stating earth leakage protective device 7 is connected to regulated power supply 1, and the outfan of described amplifying circuit 9 is connected to
Current control device 10, the first contact 13 on described slide-wire rheostat 11 and the second contact 14 respectively with
Regulated power supply 1 is connected by circuit.
Multiple circuit parameters in the specific implementation, are set by this utility model, by comparison circuit 5
Making comparisons the parameters such as electric current, earth leakage protective device 7 carries out earth leakage protective, buzzing report to regulated power supply 1
Alert device 6 sends alarm, and pneumatic element 12 controls wiper 15 distance, changes the electricity of slide-wire rheostat 11
Resistance, the output electric current of regulation regulated power supply 1, reduces regulated power supply 1 in use to greatest extent
Loss, function admirable, safe and reliable, it is simple to installation and debugging.
Embodiment the most of the present utility model, for the ordinary skill people of this area
For Yuan, it is possible to understand that can be real to these in the case of without departing from principle of the present utility model and spirit
Executing example to carry out multiple change, revise, replace and modification, scope of the present utility model is by claims
And equivalent limits.
Claims (5)
1. a novel overcurrent protection for regulated power supply, it is characterised in that: include voltage stabilizing electricity
Source (1), overcurrent detecting device (2), earth detector (3), single machine unit (4), comparison circuit
(5), buzzer siren (6), earth leakage protective device (7), reset switch (8), amplifying circuit (9), electric current control
Device processed (10), described current control device (10) includes slide-wire rheostat (11), pneumatic element (12),
The side, top of described slide-wire rheostat (11) is provided with the first contact (13), described slide-wire rheostat (11)
Top opposite side be provided with the second contact (14), the middle part of described slide-wire rheostat (11) is provided with slip
Sheet (15), one end of described pneumatic element (12) is fixing with wiper (15) to be connected.
A kind of novel overcurrent protection for regulated power supply the most according to claim 1, its
It is characterised by: described regulated power supply (1) leads to overcurrent detecting device (2), earth detector (3) respectively
Oversampling circuit connects, the outfan of described overcurrent detecting device (2), the outfan of earth detector (3)
It is all connected to the input of single machine unit (4).
A kind of novel overcurrent protection for regulated power supply the most according to claim 1, its
It is characterised by: the input/output terminal of described single machine unit (4) and comparison circuit (5) exchange data, described
The outfan of single machine unit (4) is connected respectively to buzzer siren (6), earth leakage protective device (7), resets and open
Close (8), amplifying circuit (9).
A kind of novel overcurrent protection for regulated power supply the most according to claim 1, its
It is characterised by: described reset switch (8) is connected by circuit with earth leakage protective device (7), described earth leakage protective
The outfan of device (7) is connected to regulated power supply (1).
A kind of novel overcurrent protection for regulated power supply the most according to claim 1, its
Being characterised by: the outfan of described amplifying circuit (9) is connected to current control device (10), described slip becomes
The first contact (13) and the second contact (14) in resistance device (11) are connected by circuit with regulated power supply (1) respectively
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620398527.9U CN205595783U (en) | 2016-05-05 | 2016-05-05 | Novel an over -current protection for constant voltage power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620398527.9U CN205595783U (en) | 2016-05-05 | 2016-05-05 | Novel an over -current protection for constant voltage power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595783U true CN205595783U (en) | 2016-09-21 |
Family
ID=56932808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620398527.9U Expired - Fee Related CN205595783U (en) | 2016-05-05 | 2016-05-05 | Novel an over -current protection for constant voltage power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205595783U (en) |
-
2016
- 2016-05-05 CN CN201620398527.9U patent/CN205595783U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |